plotly / plotly/plotly.R

Event "plotly_legendclick" returns unreasonable results for member $visible

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Dominant language
R
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Description

Brief description of the problem:

  1. For a first click on a(ny) legend entry there is no member $visible at all, even though the markers are not visible.
  2. For even numbers of clicks on legend entries $visible is "legendonly" (markers are shown).
  3. For odd numbers of clicks $visible is TRUE (respective markers are not shown).

Please consider as reprex:
https://github.com/ropensci/plotly/blob/master/inst/examples/shiny/event_data_legends/app.R

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Research direction

Reproduce the three legend-click cases using inst/examples/shiny/event_data_legends/app.R, recording the event payload and $visible behavior after each click. Trace the event-data handling from that example; done means the first click includes $visible and subsequent values accurately reflect whether the markers are visible.

Written by the indexing model from the issue text.

Assessment

Tech stack
r
Domain
data-visualization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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